1 // Copyright 2013 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #include "ui/gfx/android/shared_device_display_info.h"
7 #include "base/android/jni_android.h"
8 #include "base/android/jni_string.h"
9 #include "base/logging.h"
10 #include "jni/DeviceDisplayInfo_jni.h"
15 static void UpdateSharedDeviceDisplayInfo(JNIEnv* env,
19 jint physical_display_height,
20 jint physical_display_width,
22 jint bits_per_component,
24 jint smallest_dip_width,
25 jint rotation_degrees) {
26 SharedDeviceDisplayInfo::GetInstance()->InvokeUpdate(env, obj,
27 display_height, display_width,
28 physical_display_height, physical_display_width,
29 bits_per_pixel, bits_per_component,
30 dip_scale, smallest_dip_width, rotation_degrees);
34 SharedDeviceDisplayInfo* SharedDeviceDisplayInfo::GetInstance() {
35 return Singleton<SharedDeviceDisplayInfo>::get();
38 int SharedDeviceDisplayInfo::GetDisplayHeight() {
39 base::AutoLock autolock(lock_);
40 DCHECK_NE(0, display_height_);
41 return display_height_;
44 int SharedDeviceDisplayInfo::GetDisplayWidth() {
45 base::AutoLock autolock(lock_);
46 DCHECK_NE(0, display_width_);
47 return display_width_;
50 int SharedDeviceDisplayInfo::GetPhysicalDisplayHeight() {
51 base::AutoLock autolock(lock_);
52 return physical_display_height_;
55 int SharedDeviceDisplayInfo::GetPhysicalDisplayWidth() {
56 base::AutoLock autolock(lock_);
57 return physical_display_width_;
60 int SharedDeviceDisplayInfo::GetBitsPerPixel() {
61 base::AutoLock autolock(lock_);
62 DCHECK_NE(0, bits_per_pixel_);
63 return bits_per_pixel_;
66 int SharedDeviceDisplayInfo::GetBitsPerComponent() {
67 base::AutoLock autolock(lock_);
68 DCHECK_NE(0, bits_per_component_);
69 return bits_per_component_;
72 double SharedDeviceDisplayInfo::GetDIPScale() {
73 base::AutoLock autolock(lock_);
74 DCHECK_NE(0, dip_scale_);
78 int SharedDeviceDisplayInfo::GetSmallestDIPWidth() {
79 base::AutoLock autolock(lock_);
80 DCHECK_NE(0, smallest_dip_width_);
81 return smallest_dip_width_;
84 int SharedDeviceDisplayInfo::GetRotationDegrees() {
85 base::AutoLock autolock(lock_);
86 return rotation_degrees_;
90 bool SharedDeviceDisplayInfo::RegisterSharedDeviceDisplayInfo(JNIEnv* env) {
91 return RegisterNativesImpl(env);
94 void SharedDeviceDisplayInfo::InvokeUpdate(JNIEnv* env,
98 jint physical_display_height,
99 jint physical_display_width,
101 jint bits_per_component,
103 jint smallest_dip_width,
104 jint rotation_degrees) {
105 base::AutoLock autolock(lock_);
107 UpdateDisplayInfo(env, obj,
108 display_height, display_width,
109 physical_display_height, physical_display_width,
110 bits_per_pixel, bits_per_component, dip_scale,
111 smallest_dip_width, rotation_degrees);
114 SharedDeviceDisplayInfo::SharedDeviceDisplayInfo()
115 : display_height_(0),
118 bits_per_component_(0),
120 smallest_dip_width_(0) {
121 JNIEnv* env = base::android::AttachCurrentThread();
122 j_device_info_.Reset(
123 Java_DeviceDisplayInfo_create(
124 env, base::android::GetApplicationContext()));
125 UpdateDisplayInfo(env, j_device_info_.obj(),
126 Java_DeviceDisplayInfo_getDisplayHeight(env, j_device_info_.obj()),
127 Java_DeviceDisplayInfo_getDisplayWidth(env, j_device_info_.obj()),
128 Java_DeviceDisplayInfo_getPhysicalDisplayHeight(env,
129 j_device_info_.obj()),
130 Java_DeviceDisplayInfo_getPhysicalDisplayWidth(env, j_device_info_.obj()),
131 Java_DeviceDisplayInfo_getBitsPerPixel(env, j_device_info_.obj()),
132 Java_DeviceDisplayInfo_getBitsPerComponent(env, j_device_info_.obj()),
133 Java_DeviceDisplayInfo_getDIPScale(env, j_device_info_.obj()),
134 Java_DeviceDisplayInfo_getSmallestDIPWidth(env, j_device_info_.obj()),
135 Java_DeviceDisplayInfo_getRotationDegrees(env, j_device_info_.obj()));
138 SharedDeviceDisplayInfo::~SharedDeviceDisplayInfo() {
141 void SharedDeviceDisplayInfo::UpdateDisplayInfo(JNIEnv* env,
145 jint physical_display_height,
146 jint physical_display_width,
148 jint bits_per_component,
150 jint smallest_dip_width,
151 jint rotation_degrees) {
152 display_height_ = static_cast<int>(display_height);
153 display_width_ = static_cast<int>(display_width);
154 physical_display_height_ = static_cast<int>(physical_display_height);
155 physical_display_width_ = static_cast<int>(physical_display_width);
156 bits_per_pixel_ = static_cast<int>(bits_per_pixel);
157 bits_per_component_ = static_cast<int>(bits_per_component);
158 dip_scale_ = static_cast<double>(dip_scale);
159 smallest_dip_width_ = static_cast<int>(smallest_dip_width);
160 rotation_degrees_ = static_cast<int>(rotation_degrees);